918fe04351
PR-URL: https://github.com/nodejs/node/pull/58070 Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Darshan Sen <raisinten@gmail.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
40 lines
1.0 KiB
JavaScript
40 lines
1.0 KiB
JavaScript
// Copyright 2024 the V8 project authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
// Flags: --allow-natives-syntax --turbolev --turbofan
|
|
// Flags: --concurrent-recompilation
|
|
|
|
function g(x) {
|
|
assertEquals(42.42, x);
|
|
}
|
|
%NeverOptimizeFunction(g);
|
|
|
|
function test_osr(x, y) {
|
|
let s = 0;
|
|
let loop_is_turbofan = false;
|
|
for (let i = 0; i < 20; i++) {
|
|
%OptimizeOsr();
|
|
s += i;
|
|
loop_is_turbofan = %CurrentFrameIsTurbofan();
|
|
}
|
|
|
|
// This multiplication will trigger a deopt (because it has no feedback).
|
|
s *= x;
|
|
|
|
// The loop should have been in Turbofan in its last few iterations.
|
|
assertTrue(loop_is_turbofan);
|
|
|
|
// We shouldn't be in Turbofan anymore
|
|
assertFalse(%CurrentFrameIsTurbofan());
|
|
assertFalse(%ActiveTierIsTurbofan(test_osr));
|
|
|
|
// Keeping the parameters alive, just to make sure that everything works.
|
|
g(y);
|
|
|
|
return s;
|
|
}
|
|
|
|
%PrepareFunctionForOptimization(test_osr);
|
|
assertEquals(570, test_osr(3, 42.42));
|